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08-07-2011
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#1 | | |
Usb 3.0? Hey guys.
My new laptop is USB 3.0 capable, and I have some questions about it.
• If I plug something old, say...my old Sandisk MP3 player or my second gen iPod touch, will it charge faster than if I had plugged it into a USB 2.0 port?
• Will I get faster data read/write speeds on ANY flash disk, or does the flash drive need to be specifically USB 3.0 capable?
• USB 3.0 is backwards compatible with USB 2.0, but USB 1.0 devices will not work on it, right?
| My System Specs | | System Manufacturer/Model Number Sager NP5165 OS Windows 7 Ultimate x64 CPU Intel i7-2630qm Memory 4GB DDR3 Graphics Card Nvidia GT 555m 2GB Monitor(s) Displays 1920x1080 Hard Drives Seagate Momentus XT 500GB Solid State Hybrid Drive 7200RPM Other Info Price: $1,017usd |
08-07-2011
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#2 | | Windows 7 X64 Professional/Windows 8 |
I may be mistaken, but I believe USB 1. will run on it. It is backward compatible and that usually means 2.0 and 1.0. USB 3.0 puts out a little more power than USB 2.0 so it is possible to damage some things that are made for 2.0. I'm thinking especially about the Ipod touch. I haven't plugged mine into USB 3.0 ports because the instructions say 2.0 and I don't know if 3.0 is too much for them. but anything else 2.0 will usually run on it, and some will run even a little faster. | My System Specs | | System Manufacturer/Model Number Home Brew - Always under construction OS Windows 7 X64 Professional/Windows 8 CPU intel i7-2600K Motherboard Asus P8Z68 V-Pro/GEN 3 Memory 8GB G.Skill Sniper DDR3-2133 (2X4GB) Graphics Card EVGA 670 2GB Sound Card Asus Xonar Monitor(s) Displays Asus 24" LCD VW246H Screen Resolution 1920X1080 Keyboard Logitech G510 Mouse Logitech G500/Logitech Wireless PSU CORSAIR HX850W Case Cooler Master HAF X Cooling Corsair H100 w/ 4 noctua fans in push/pull. Hard Drives Crucial M4 128GB,Crucial M4 64GB,Samsung HD103SJ 1TB, 1TB WD FAEX,Samsung 1.5TB, EXTERNAL HD- 2X Rosewill case esata w/ 1TB Samsung spinpoints & Black X esata 1TB Spinpoint, Rosewill USB 3.0 dock 1TB Spinpoint, Seagate GOFlex Pro 500GB & 750GB USB Internet Speed Foot Messenger speed Other Info 2nd Computer- Samsung RF711-SO1 17" Laptop i5-2310M, 8GB DDR3-1333, Crucial M4 and OCZ vertex2, Nvidia GT540M.Win 7 HP X64. |
08-09-2011
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#3 | | |
What about 
Quote: Originally Posted by Artelus •Will I get faster data read/write speeds on ANY flash disk, or does the flash drive need to be specifically USB 3.0 capable? | My System Specs | | System Manufacturer/Model Number Sager NP5165 OS Windows 7 Ultimate x64 CPU Intel i7-2630qm Memory 4GB DDR3 Graphics Card Nvidia GT 555m 2GB Monitor(s) Displays 1920x1080 Hard Drives Seagate Momentus XT 500GB Solid State Hybrid Drive 7200RPM Other Info Price: $1,017usd |
08-09-2011
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#4 | | |
You cannot damage something by supplying more available power. The device you are powering will only use as much power as it needs. As long as it is the same voltage, which it has to be, the device will not be damaged.
Also, the spec states:
"Note that the maximum power draw for a SuperSpeed device operating in non-SuperSpeed mode is governed by the limits set in the USB 2.0 specification." | My System Specs | | System Manufacturer/Model Number Home built (GeneO industries)/Model 2 OS Windows 7 64 bit SP1 CPU i5 2500k @ 4.5 GHz, 1.256V 120 GFlop (with AVX) Motherboard ASUS P8Z68-V PRO/GEN3 Memory 16GB (4GBx4) 1600MHz G.skill Ripjaws X 8-8-8-24 Graphics Card Asus Nvidia ENGTS450, 1GB 4030 MHz DDR5 clock, 915 Mhz GPU Sound Card Onboard Realtek HD Monitor(s) Displays NEC Spectraview 2490WUXi-SV Screen Resolution 1920 x 1200 Keyboard HP Wireless Mouse HP wireless PSU Antec TruePower New 650W Case Fractal Design "Define R3" Cooling CM Hyper 212+ push/pull, 5 120mm, 1 140mm case fans Hard Drives Crucial 128GB M4 (system), 2x WD Caviar 1TB Black internal (data), 1x Seagate 750G Barracuda Internal (backups), 1x WD Blue 6Gb/s 320GB Internal, 1x Corsair F40 SSD for cache, 1x 2TB eSata WD20EARS Green, 2x 500GB Seagate external USB, 1x 350GB exte Internet Speed 25.7 Mb/s down, 4.5 Mb/s up Other Info USB 3.0 x4 , SATA III x4, eSATA x3, SATA II x4, USB 2.0 x8. 2 Samsung DVD R/W drives.
WEI: CPU 7.7, Memory 7.9, Graphics 7.4, Disk 7.9 |
08-09-2011
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#5 | | Windows 7 Ultimate x64 SP1 |
You won't get faster speeds by using a non-USB 3.0 device, such as a flash drive. As with all other computer technologies, the transfer goes at the rate of the slowest link in the chain. If you are using a 2.0 flash drive on a 3.0 port, the 2.0 speeds are the slowest, and what you'll see for a transfer rate. | My System Specs | | OS Windows 7 Ultimate x64 SP1 CPU Intel Core i7-2600 Motherboard Gigabyte GA-P67A-UD3P-B3 Memory 12 GB Patriot Extreme DDR3-1333 Graphics Card Nvidia GTX 470 Monitor(s) Displays Dell UltraSharp 2209WA PSU OCZ ModStream 700W Case CoolerMaster HAF 912 Advanced Cooling CoolerMaster Hyper 212 Plus Hard Drives OCZ Agility3 240 GB, WD5001AALS, WD7501AALS |
08-09-2011
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#6 | | Windows 7 Ultimate X86 SP1 |
The USB people have been diligent so far in that any USB device will operate in the new USB 3.0 ports. the 3.0 ports have 5 extra connectors inside which will mate with a 3.0 plug. Earlier USB plugs will not, but will operate at their respective speeds and voltage. If you are going to connect to 3.0 via a cable your will need a USB 3.0 cable withe the 5 extra wires and connectors within. A 3.0 cable is nearly as big as a standard CAT5 ethernet cable. | My System Specs | | System Manufacturer/Model Number Brittechnologies II OS Windows 7 Ultimate X86 SP1 CPU i5-2550K differing speeds depending on the day Motherboard ASUS P8X68-V PRO/GEN3 Memory 16GB G.Skill Sniper 2133MHz, 4X4GB Graphics Card ASUS ENGTX460 DirectCU/2DI/1GD5 GeForce GTX 460 Sound Card Onboard Realtek 5-1 Monitor(s) Displays Samsung P2570HD Screen Resolution 1920x1080 Keyboard Old Dell USB From 10 yrs Ago Mouse Gigabyte m6900 wired PSU Corsair HX650W Case Inwin Dragon rider Cooling Hyper 212 EVO w/two Noctua fans @1300 RPM Hard Drives TBA Internet Speed 8-19 Mbs down, 3-4 Mbs up Comcast Cable Other Info 5 fans, LG Bluray/R/RE, ASUS DVD/R/RW |
08-09-2011
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#7 | | |
Also note that many Flash storage devices are not fast enough to make a difference. For example, class 6 and below SDHC cards won't push the limits of USB 2.0 either reading or writing, so USB 3.0 does not allow additional performance.
For Compact Flash cards, you have to buy one of the really fast ones (300x or better) before you'll start getting limited by USB 2.0.
SSDs and the newest, fastest SDHC cards are a different matter. Some of the class 10 cards should be pushing past USB 2.0 limits on reads, though not writes. I guess for those you'd want a USB 3.0 card reader. | My System Specs | | System Manufacturer/Model Number Homebuilt OS Windows 7 Ultimate x64 CPU Intel Core 2 Duo E8500 Motherboard Asus P5E3 WS Pro Memory 4 GB DDR3 1333 MHz (2 x 2 GB DIMM) Graphics Card Nvidia GeForce 9800 GTX+ Sound Card Creative Audigy 2 ZS Monitor(s) Displays NEC AccuSync 120 21" CRT, Samsung BX2440X 24" LCD Screen Resolution 1600x1200 CRT, 1920x1080 LCD Keyboard Saitek Eclipse II, Nostromo n52 Mouse Logitech MX 310 PSU 850 W Case Lancool PC-K7B Cooling Standard fans & heatsink Hard Drives Various and sundry SATA I/II HDDs Internet Speed 20 Mbit cable Other Info Recently added: NEC/Renesas µPD720200 USB 3.0 card on PCI Express 2.0 1x slot All times are GMT -5. The time now is 10:47 AM. |  |